| 1 |
%{ |
| 2 |
/* |
| 3 |
* This SQL Lexer is copied from the O'Reilly Lex & Yacc book, 2nd Edition, |
| 4 |
* 1995, by John R. Levine, Tony Mason, and Doug Brown. It probably contains |
| 5 |
* words that we don't need for the Object Server, and will probably need |
| 6 |
* enhancements. I removed the DDL and non-query words, but I'm going to |
| 7 |
* leave in all other O'Reilly stuff unless it becomes real obvious that we |
| 8 |
* don't need it. |
| 9 |
* |
| 10 |
* Jeremy Hickerson, 5/8/2002 |
| 11 |
*/ |
| 12 |
#define LEX_SOURCE_FILE |
| 13 |
|
| 14 |
#include <string.h> |
| 15 |
#include "obj_srvr.h" |
| 16 |
/*#include "flexdef.h"*/ |
| 17 |
|
| 18 |
#ifdef VMS |
| 19 |
#include <unixio.h> |
| 20 |
#endif |
| 21 |
|
| 22 |
/* |
| 23 |
#include <string.h> |
| 24 |
#include <stdlib.h> |
| 25 |
#include <unistd.h> |
| 26 |
#include <types.h> |
| 27 |
#include <socket.h> |
| 28 |
#include <in.h> |
| 29 |
#include <inet.h> |
| 30 |
#include <netdb.h> |
| 31 |
#include <stdio.h> |
| 32 |
#include <errno.h> |
| 33 |
#include <time.h> |
| 34 |
#include <timeb.h> |
| 35 |
*/ |
| 36 |
|
| 37 |
#include <ctype.h> |
| 38 |
#include <stdarg.h> |
| 39 |
#include <stdio.h> |
| 40 |
#include <stdlib.h> |
| 41 |
#include <string.h> |
| 42 |
#include <stdbool.h> |
| 43 |
|
| 44 |
|
| 45 |
#define bcopy(s,d,l) memcpy(d,s,l) |
| 46 |
#define bzero(d,l) memset(d,0,l) |
| 47 |
#define BUF_SIZE 2048 |
| 48 |
|
| 49 |
char buf[BUF_SIZE]; |
| 50 |
int sock; |
| 51 |
|
| 52 |
#include "obj_srvr.tab.h" |
| 53 |
|
| 54 |
int lineno = 1; |
| 55 |
char mode; |
| 56 |
|
| 57 |
void yyerror(char *s); |
| 58 |
void connect_to_oracle_obj_srvr(char *host, int port); |
| 59 |
|
| 60 |
/* macro to save the text of a SQL token */ |
| 61 |
#define SV save_str(yytext) |
| 62 |
|
| 63 |
/* macro to save the text and return a token */ |
| 64 |
#define TOK(name) { SV; token = name; return name; } |
| 65 |
|
| 66 |
/* read input through perl, since perl has access to oracle_obj_srvr socket */ |
| 67 |
/* (we connected to it in perl, because if we connect in C (here) then haven't |
| 68 |
figured out how to make perl see socket for output) */ |
| 69 |
#define YY_INPUT(buf,result,max_size) { \ |
| 70 |
strcpy(buf, call_perl_get_yyin(max_size) ); \ |
| 71 |
result = strlen(buf); \ |
| 72 |
} |
| 73 |
|
| 74 |
%} |
| 75 |
|
| 76 |
%s SQL |
| 77 |
%% |
| 78 |
|
| 79 |
/* EXEC[ \t]+SQL { BEGIN SQL; printf("SQL> "); start_save(); } */ |
| 80 |
SQL { |
| 81 |
|
| 82 |
BEGIN SQL; |
| 83 |
|
| 84 |
call_perl_send_yyout("SQL> "); |
| 85 |
|
| 86 |
if (mode == 'S') |
| 87 |
call_perl_send_yyout("\n"); |
| 88 |
|
| 89 |
start_save(); |
| 90 |
} |
| 91 |
|
| 92 |
QUIT { close(sock); exit(0); } |
| 93 |
|
| 94 |
/* literal keyword tokens */ |
| 95 |
<SQL>ALL TOK(ALL) |
| 96 |
<SQL>AND TOK(AND) |
| 97 |
<SQL>AVG TOK(AMMSC) |
| 98 |
<SQL>MIN TOK(AMMSC) |
| 99 |
<SQL>MAX TOK(AMMSC) |
| 100 |
<SQL>SUM TOK(AMMSC) |
| 101 |
<SQL>COUNT TOK(AMMSC) |
| 102 |
<SQL>ANY TOK(ANY) |
| 103 |
<SQL>AS TOK(AS) |
| 104 |
<SQL>ASC TOK(ASC) |
| 105 |
<SQL>AUTHORIZATION TOK(AUTHORIZATION) |
| 106 |
<SQL>BETWEEN TOK(BETWEEN) |
| 107 |
<SQL>BY TOK(BY) |
| 108 |
<SQL>CHAR(ACTER)? TOK(CHARACTER) |
| 109 |
<SQL>CHECK TOK(CHECK) |
| 110 |
<SQL>CLOSE TOK(CLOSE) |
| 111 |
<SQL>CONTINUE TOK(CONTINUE) |
| 112 |
<SQL>CURRENT TOK(CURRENT) |
| 113 |
<SQL>CURSOR TOK(CURSOR) |
| 114 |
<SQL>DECIMAL TOK(DECIMAL) |
| 115 |
<SQL>DECLARE TOK(DECLARE) |
| 116 |
<SQL>DEFAULT TOK(DEFAULT) |
| 117 |
<SQL>DESC TOK(DESC) |
| 118 |
<SQL>DISTINCT TOK(DISTINCT) |
| 119 |
<SQL>DOUBLE TOK(DOUBLE) |
| 120 |
<SQL>ESCAPE TOK(ESCAPE) |
| 121 |
<SQL>EXISTS TOK(EXISTS) |
| 122 |
<SQL>FETCH TOK(FETCH) |
| 123 |
<SQL>FLOAT TOK(FLOAT) |
| 124 |
<SQL>FOR TOK(FOR) |
| 125 |
<SQL>FOREIGN TOK(FOREIGN) |
| 126 |
<SQL>FOUND TOK(FOUND) |
| 127 |
<SQL>FROM TOK(FROM) |
| 128 |
<SQL>GO[ \t]*TO TOK(GOTO) |
| 129 |
<SQL>GROUP TOK(GROUP) |
| 130 |
<SQL>HAVING TOK(HAVING) |
| 131 |
<SQL>IN TOK(IN) |
| 132 |
<SQL>INDICATOR TOK(INDICATOR) |
| 133 |
<SQL>INT(EGER)? TOK(INTEGER) |
| 134 |
<SQL>INTO TOK(INTO) |
| 135 |
<SQL>IS TOK(IS) |
| 136 |
<SQL>KEY TOK(KEY) |
| 137 |
<SQL>LANGUAGE TOK(LANGUAGE) |
| 138 |
<SQL>LIKE TOK(LIKE) |
| 139 |
<SQL>NOT TOK(NOT) |
| 140 |
<SQL>NULL TOK(NULLX) |
| 141 |
<SQL>NUMERIC TOK(NUMERIC) |
| 142 |
<SQL>OF TOK(OF) |
| 143 |
<SQL>ON TOK(ON) |
| 144 |
<SQL>OPEN TOK(OPEN) |
| 145 |
<SQL>OPTION TOK(OPTION) |
| 146 |
<SQL>OR TOK(OR) |
| 147 |
<SQL>ORDER TOK(ORDER) |
| 148 |
<SQL>PRECISION TOK(PRECISION) |
| 149 |
<SQL>PRIMARY TOK(PRIMARY) |
| 150 |
<SQL>PRIVILEGES TOK(PRIVILEGES) |
| 151 |
<SQL>PROCEDURE TOK(PROCEDURE) |
| 152 |
<SQL>REAL TOK(REAL) |
| 153 |
<SQL>REFERENCES TOK(REFERENCES) |
| 154 |
<SQL>SCHEMA TOK(SCHEMA) |
| 155 |
<SQL>SELECT TOK(SELECT) |
| 156 |
<SQL>SMALLINT TOK(SMALLINT) |
| 157 |
<SQL>SOME TOK(SOME) |
| 158 |
<SQL>SQLCODE TOK(SQLCODE) |
| 159 |
<SQL>TO TOK(TO) |
| 160 |
<SQL>UNION TOK(UNION) |
| 161 |
<SQL>UNIQUE TOK(UNIQUE) |
| 162 |
<SQL>USER TOK(USER) |
| 163 |
<SQL>VALUES TOK(VALUES) |
| 164 |
<SQL>WHENEVER TOK(WHENEVER) |
| 165 |
<SQL>WHERE TOK(WHERE) |
| 166 |
<SQL>WITH TOK(WITH) |
| 167 |
<SQL>WORK TOK(WORK) |
| 168 |
|
| 169 |
|
| 170 |
|
| 171 |
/* punctuation */ |
| 172 |
<SQL>"=" TOK(COMP_EQ) |
| 173 |
<SQL>"<>" TOK(COMP_NE1) |
| 174 |
<SQL>"!=" TOK(COMP_NE2) |
| 175 |
<SQL>"<" TOK(COMP_LT) |
| 176 |
<SQL>">" TOK(COMP_GT) |
| 177 |
<SQL>"<=" TOK(COMP_LE) |
| 178 |
<SQL>">=" TOK(COMP_GE) |
| 179 |
|
| 180 |
<SQL>[-+*/:(),.;] TOK(yytext[0]) |
| 181 |
|
| 182 |
|
| 183 |
/* names */ |
| 184 |
<SQL>[A-Za-z][A-Za-z0-9_]* TOK(NAME) |
| 185 |
|
| 186 |
/* strings */ |
| 187 |
<SQL>'[^'\n]*' TOK(STRING) |
| 188 |
|
| 189 |
<SQL>'[^'\n]*$ { yyerror("Unterminated string"); } |
| 190 |
|
| 191 |
|
| 192 |
/* numbers */ |
| 193 |
<SQL>[0-9]+ | |
| 194 |
<SQL>[0-9]+"."[0-9]* | |
| 195 |
<SQL>"."[0-9]* TOK(INTNUM) |
| 196 |
|
| 197 |
<SQL>[0-9]+[eE][+-]?[0-9]+ | |
| 198 |
<SQL>[0-9]+"."[0-9]*[eE][+-]?[0-9]+ | |
| 199 |
<SQL>"."[0-9]*[eE][+-]?[0-9]+ TOK(APPROXNUM) |
| 200 |
|
| 201 |
|
| 202 |
/* whitespace */ |
| 203 |
<SQL>\n { save_str(" "); lineno++; } |
| 204 |
\n { save_str(" "); lineno++; } /* jh: non-SQL */ |
| 205 |
|
| 206 |
<SQL>[ \t\r]+ save_str(" "); /* whitespace */ |
| 207 |
|
| 208 |
<SQL>"--".* ; /* comment */ |
| 209 |
|
| 210 |
|
| 211 |
/* anything else */ |
| 212 |
. ; /* ignore */ |
| 213 |
|
| 214 |
%% |
| 215 |
|
| 216 |
|
| 217 |
void yyerror(char *s) { |
| 218 |
printf("%d: %s at %s\n", lineno, s, yytext); |
| 219 |
} |
| 220 |
|
| 221 |
|
| 222 |
/* leave SQL lexing mode */ |
| 223 |
un_sql() { |
| 224 |
BEGIN INITIAL; |
| 225 |
} |
| 226 |
|
| 227 |
|
| 228 |
main(int argc, char *argv[]) { |
| 229 |
|
| 230 |
|
| 231 |
if (argc < 4) { |
| 232 |
fprintf(stderr, "Usage: obj_srvr <db_uid> db_passwd> <mode: (I)nteractive/(S)erver> [host] [port]\n"); |
| 233 |
return; |
| 234 |
} |
| 235 |
|
| 236 |
char perlscript_to_embed[] = "obj_srvr.pl"; |
| 237 |
static char *perl_argv[5]; |
| 238 |
int i; |
| 239 |
|
| 240 |
perl_argv[0] = argv[0]; |
| 241 |
perl_argv[1] = perlscript_to_embed; |
| 242 |
perl_argv[2] = argv[1]; |
| 243 |
perl_argv[3] = argv[2]; |
| 244 |
|
| 245 |
/* start the perl interpreter and compile obj_srvr.pl */ |
| 246 |
if ( !strcmp(argv[3], "S") || !strcmp(argv[3], "s") ) { |
| 247 |
strcpy(perl_argv[2], ""); |
| 248 |
strcpy(perl_argv[3], ""); |
| 249 |
} |
| 250 |
embed_perl_obj_srvr(4, perl_argv, NULL); |
| 251 |
|
| 252 |
/* connect to "wrapper" server running on foreign tnslsnr */ |
| 253 |
if ( !strcmp(argv[3], "S") || !strcmp(argv[3], "s") ) { |
| 254 |
mode = 'S'; |
| 255 |
call_perl_connect2client(argv[4], argv[5]); |
| 256 |
} |
| 257 |
|
| 258 |
do { |
| 259 |
if (yyparse() ) { |
| 260 |
call_perl_send_yyout("\nQUIT\n"); |
| 261 |
break; |
| 262 |
} |
| 263 |
} while (!feof(yyin) ) ; |
| 264 |
|
| 265 |
end_perl(); |
| 266 |
} |
| 267 |
|
Parent Directory
| 
Revision Log